/**
 * 
 * ETH AI GAME LIBRARY
 * 
 * Author: Michael Jaworski
 * Copyright (c) Michael Jaworski 2010
 * http://code.google.com/p/eth/
 * 
 * Licence Agreement
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *	
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

package lib.eth.core.interfaces
{
	
	/**
	 * 
	 * implemented by eth systems, which are classes that hold and process groups of eth objects (an eth
	 * object is any class in eth - not a specific EthObject class)
	 * 
	 * this interface exists really so the different systems can be pooled or kepted together to 
	 * easily ensure they stay singletons in the game code. 
	 * 
	 * you will never need to instantiate more than ONE class that implements IEthSystem. 
	 * no class that implements IEthSystem will ever force singleton status. so another purpose of this
	 * interface is to let users know that any class that does implement this interface should not be
	 * instantiated more than once - it would be a pointless waste of memory.
	 * 
	 * @version 0.1
	 */ 
	public interface IEthSystem
	{}
}